Division 4.4.2.4 Velocity deviation
During a measurement at a single reference speed point, the velocity deviation from the arithmetic average velocity, vji–vjm, calculated according to paragraph 4.4.3. of this Sub-Annex, shall be within the values in F1Table A4/6.
Additionally, the arithmetic average velocity vjm at every reference speed point shall not deviate from the reference speed vj by more than ± 1 km/h or 2 per cent of the reference speed vj, whichever is greater.
Table A4/6
Velocity deviation
| Time period, s | Velocity deviation, km/h |
|---|---|
| 5 - 10 | ± 0,2 |
| 10 - 15 | ± 0,4 |
| 15 - 20 | ± 0,6 |
| 20 - 25 | ± 0,8 |
| 25 - 30 | ± 1,0 |
| ≥ 30 | ± 1,2 |